Impression coping



FIG. 1 is a perspective view of an impression coping, showing our new design;

FIG. 2 is a front elevational view thereof, the rear elevational view, left-side elevational view, and right-side elevational view all being a mirror image thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof. 

What is claimed is the ornamental design for a impression coping, as shown and described. 